chrome/browser/ui/aura/native_window_tracker_aura.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/ui/aura/native_window_tracker_aura.h"
   6
   7 #include "ui/aura/window.h"
   8
   9 NativeWindowTrackerAura::NativeWindowTrackerAura(
  10     gfx::NativeWindow window)
  11     : window_(window) {
  12   window->AddObserver(this);
  13 }
  14
  15 NativeWindowTrackerAura::~NativeWindowTrackerAura() {
  16   if (window_)
  17     window_->RemoveObserver(this);
  18 }
  19
  20 bool NativeWindowTrackerAura::WasNativeWindowClosed() const {
  21   return window_ == nullptr;
  22 }
  23
  24 void NativeWindowTrackerAura::OnWindowDestroying(
  25     aura::Window* window) {
  26   window_->RemoveObserver(this);
  27   window_ = nullptr;
  28 }
  29
  30 // static
  31 scoped_ptr<NativeWindowTracker> NativeWindowTracker::Create(
  32     gfx::NativeWindow window) {
  33   return scoped_ptr<NativeWindowTracker>(new NativeWindowTrackerAura(window));
  34 }